Structure And Functions; Nk8237 Hardware; Front Panel - Siemens NK8237 MP4.81-02 Installation, Configuration And Commissioning

Structure and functions

4

NK8237 hardware

6 Structure and functions
6.1
6.1.1
16
Building Technologies
CPS Fire Safety
NK8237 hardware
The NK8237 is composed of an electronic board installed in a compact and robust
plastic box.
Note: NK8237 units with build state up to 01 are equipped with the NKM8001-A1
mainboard and NK8237 units with build state 10 or higher are equipped with the
NKM8001-A2 mainboard.
NK8237 gateway unit

Front panel

The front panel houses 9 LEDs.
Left Side LEDs
The five LEDs on the left side are from top to bottom:
Power (green LED)
Power (hardware – controlled).
Vital functions (green LED)
Software vitality:
Blinking (1 flash)
: core software running.
⚫
Blinking (2 flashes)
: core software running and logging function active.
⚫
Tamper (bi-color LED)
Unit tamper:
Red
means tamper alarm (hardware controlled).
⚫
Green
means tamper disabled (from management station).
⚫
Download (red LED)
Network diagnostics:
Off : status OK.
⚫
Blinking (1 flash)
: missing identification from NS8xxx.
⚫
Blinking (2 flashes)
: not used.
⚫
Blinking (3 flashes)
: FTP channel open (default mode; for switch settings see
⚫
Internal DIP Switches
On
: critical/hardware fault.
⚫
.
A6V10854379_a_en
25.01.2019